KR102663915B1 - Paint composition, manufacturing method for same and manufacturing method for painting subject using same - Google Patents

Abstract

This specification relates to a coating composition that can be applied to various base materials and has excellent water resistance, acid resistance, oxidation resistance, or light resistance, a method of manufacturing the same, and a method of manufacturing a painted product using the same.

Description

Paint composition, manufacturing method thereof, and manufacturing method of painted products using the same {PAINT COMPOSITION, MANUFACTURING METHOD FOR SAME AND MANUFACTURING METHOD FOR PAINTING SUBJECT USING SAME}

This specification relates to a coating composition, a method of manufacturing the same, and a method of manufacturing a painted product using the same.

Paint composition refers to a composition that can display color by being applied to a base material such as paint or paint.

Conventional paint compositions had different characteristics from the base material, causing a feeling of heterogeneity, and had problems such as the appearance becoming dirty when peeled off over time after application.

Meanwhile, conventional paint compositions have limitations in that they do not well represent the characteristics of the base material.

KR 10-1166340 B1

This specification relates to a coating composition that can be applied to various base materials and has excellent water resistance, acid resistance, oxidation resistance, or light resistance, a method of manufacturing the same, and a method of manufacturing a painted product using the same.

One embodiment of the present invention includes a dispersion matrix; and

Indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu), nickel (Ni), vanadium (V), tungsten (W), One or two or more materials selected from tantalum (Ta), molybdenum (Mo), neodymium (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au), and silver (Ag); its oxide; its chloride; its carbonate; carbon; and one or two or more pigments selected from the group consisting of carbon composites, wherein the content of the pigment is 20 parts by weight to 95 parts by weight based on 100 parts by weight of the total composition.

In addition, one embodiment of the present invention includes preparing a dispersion matrix; And indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu), nickel (Ni), vanadium (V), One type selected from tungsten (W), tantalum (Ta), molybdenum (Mo), neodymium (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au), and silver (Ag), or 2 or more ingredients; its oxide; its chloride; its carbonate; carbon; and adding one or two or more pigments selected from the group consisting of carbon composites.

Meanwhile, another embodiment of the present invention includes preparing a base material; Coating the above-described paint composition on the base material; and curing the paint composition.

The paint composition according to an embodiment of the present invention can be applied to various base materials and has excellent water resistance, acid resistance, oxidation resistance, and light resistance.

Figures 1 to 17 show painted products manufactured in embodiments of the present invention.

Hereinafter, this specification will be described in detail.

As used herein, unless otherwise specified, the terms "comprise", "comprises", and "comprising" mean including the mentioned article, step or group of articles and steps, and include any other article, step or group of articles and steps. It is not used in the sense of excluding an object or group of steps.

In this specification, 'dispersion matrix' refers to a matrix in which a material such as a pigment described later can be dispersed, and the shape is not limited.

In this specification, 'oxide' refers to an oxidized form of a metal, and the oxidation number is not limited.

In this specification, 'chloride' refers to a compound in which a metal ion and a chlorine ion are combined.

In this specification, 'carbonate' refers to a compound in which a metal ion and a carbonate ion (CO ₃ ^2- ) are combined.

One embodiment of the present invention includes a dispersion matrix; and

Indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu), nickel (Ni), vanadium (V), tungsten (W), One or two or more materials selected from tantalum (Ta), molybdenum (Mo), neodymium (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au), and silver (Ag); its oxide; its chloride; its carbonate; carbon; and one or more pigments selected from the group consisting of carbon composites, wherein the pigment content is 20 wt% to 95 wt% based on 100 parts by weight of the total composition.

In one embodiment of the present invention, the pigment may be dispersed on the dispersion matrix.

Since the paint composition according to an exemplary embodiment of the present invention contains the above-described metal pigment, it can be applied not only to typical base materials such as paper, but also to non-traditional base materials such as metal. The pigment has a metallic color and has excellent compatibility with base materials such as metal, so even if the paint composition is peeled off, the feeling of heterogeneity with the base material can be minimized.

Previously, an additional etching process of the base material was required to express the metal texture, but the paint composition of the present invention has excellent compatibility with base materials such as metal, and is compatible with the base material even without the etching process. This has excellent effects.

In addition, the coating composition of the present invention has the effect of controlling the color in more diverse ways by controlling the degree of oxidation before and after coating the base material. Specifically, the pigment may be a metal or its oxide, nitride, or chloride, and has the property of changing color in various ways as the degree of oxidation, nitridation, or chloride is adjusted. Using the above characteristics, there is an advantage in that various colors can be realized without the use of separate artificial dyes.

The principle by which the pigment develops color is different from the principle of color development by using conventional dyes. For example, the spectrum for absorbing light is different when using a method of absorbing light by adding a dye to a resin and when using a pigment as described above. When light is absorbed by adding dye to the resin, the absorption wavelength band is fixed, and only the absorption amount changes depending on the content. Additionally, in order to obtain the desired light absorption amount, it is necessary to add an excessive amount of dye to control the light absorption amount. On the other hand, in the above-mentioned pigment, even if it is contained in a small amount, the wavelength range of the light absorbed changes, making it easy to express color.

Lastly, the paint composition can improve the dispersibility of the pigment and prevent the formation of precipitates by including the pigment in a specific amount. Through this, the coating properties, spreadability, and processability of the coating composition can be improved.

In one embodiment of the present invention, indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu), nickel (Ni), vanadium (V), tungsten (W), tantalum (Ta), molybdenum (Mo), neodymium (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au), and silver (Ag) are pigments. It can be named metal.

In one embodiment of the present invention, the pigment is the pigment metal; its oxide; its chloride; its carbonate; carbon; Or it may include a carbon composite.

In one embodiment of the present invention, the pigment is the pigment metal; its oxide; its chloride; Or it may include carbonate thereof. Optical properties change depending on whether the same pigment metal is oxidized, chlorinated, or chlorinated, allowing the expression of various textures.

In one embodiment of the present invention, the pigment may be iron, iron oxide, or iron chloride. In the case of unoxidized iron, a black color appears in the visible light range, and in the case of iron oxide, a black color mixed with brown may appear.

In one embodiment of the present invention, the pigment may be copper, copper oxide, or copper chloride. When using the above materials, a warm tone red or brown color can be expressed.

In one embodiment of the present invention, the pigment may be aluminum or copper oxide. When using the above materials, cool tone white can be expressed.

In one embodiment of the present invention, the pigment may be cobalt, cobalt oxide, or cobalt chloride. When using the above materials, a cool tone purple or blue color can be expressed. Meanwhile, since the optical properties of the cobalt material change greatly depending on humidity, the cobalt material can express rich colors by varying the humidity of the environment in which it is left.

In one embodiment of the present invention, the pigment may include the above-described materials alone or two or more materials. If two or more materials are included, two or more different colors and textures can be realized simultaneously. For example, when using three materials: iron, copper, and aluminum, the red color from iron and copper and the white color from aluminum can be realized at the same time.

In one embodiment of the present invention, the content of the pigment may be 30 parts by weight to 95 parts by weight, or 40 parts by weight to 90 parts by weight, based on 100 parts by weight of the total composition. Within the above range, the metallic texture of the pigment can be maintained and spreadability can be improved. The content of the pigment refers to the total weight of the pigment contained in the composition.

In one embodiment of the present invention, the diameter of the pigment may be 0.05 ㎛ or more and 10 ㎛ or less, 0.1 ㎛ or more and 8 ㎛ or less, and 0.1 ㎛ or more and 5 ㎛ or less. By satisfying the above range, the pigments can be prevented from coagulating and forming precipitates, the dispersibility of the pigments can be improved, and the texture of the metal can be maintained as is. The diameter of the pigment can be confirmed through an optical microscope.

In one embodiment of the present invention, the pigment may be in powder form. The powder form means a form that does not aggregate with each other.

In one embodiment of the present invention, the shape of the pigment may be spherical. The fact that the shape is spherical includes not only a completely spherical shape, but also a shape that has a spherical shape as a whole. At this time, those with a deviation of the geometric average diameter of the pigment within 10% are also included as spheres.

1/sin

2 (

1은 안료의 표면에서 입사되는 빛의 각이고,

2는 안료의 내부에서 빛의 굴절각이다)으로 계산될 수 있다.In one embodiment of the present invention, the refractive index of the pigment in the visible light region may be 0 to 8. The refractive index (n) is sin

1/sin

2 (

1 is the angle of light incident on the surface of the pigment,

2 is the refraction angle of light inside the pigment).

In one embodiment of the present invention, the extinction coefficient of the pigment in the visible light region may be 0 to 8.

As the refractive index and extinction coefficient of the pigment satisfy the above range, various colors can appear. When measuring the refractive index and extinction coefficient, the wavelength of visible light may be 400 nm. The extinction coefficient (k) is -λ/4πI(dI/dx) (here, the path unit length (dx) within the light absorption layer, for example, the reduction fraction of light intensity per 1 m dI/I multiplied by -λ/4π , where λ is the wavelength of light.

In one embodiment of the present invention, the pigment may further include one or more pigments selected from the group consisting of manganese, zirconium, magnesium, borax, boric acid, tin, zinc, barium, antimony, lithium, and sodium.

In one embodiment of the present invention, the dispersion matrix may include gesso. The gesso may be general gesso used for drawing sketches in the art field, and transparent, colorless gesso may be used to express color. Commercially available products include transparent gesso from Peveo or clear gesso from Liquitax.

In one embodiment of the present invention, the dispersion matrix is an aromatic hydrocarbon-based solvent; Ketone-based solvent; Ester-based solvent; And it may further include one or more solvents selected from the group consisting of combinations thereof.

In one embodiment of the present invention, the aromatic hydrocarbon-based solvent may be toluene, xylene, etc.

In one embodiment of the present invention, the ketone-based solvent may be methyl ethyl ketone, methyl propyl ketone, methyl butyl ketone, etc.

In one embodiment of the present invention, the ester-based solvent may be methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate, isopropyl, butyl acetate, butyl cellosolve acetate, etc.

In one embodiment of the present invention, the paint composition further includes one or more resins selected from the group consisting of epoxy resin, acrylic resin, alkyd resin, vinyl chloride resin, chlorinated olefin resin, melamine-formaldehyde resin, and vinyl acetate resin. can do.

In one embodiment of the present invention, the paint composition may further include one or more additives selected from the group consisting of a curing agent, a viscosity modifier, a surfactant, a dispersant, a plasticizer, an antibacterial agent, a disinfectant, an antioxidant, and an antifoaming agent. The additive may be appropriately selected depending on the specific composition of the coating composition and characteristics such as the material and shape of the target surface on which the coating film is formed. In particular, the curing agent may include one or more compounds selected from the group consisting of amines, polyamides, and isocyanate compounds as an agent for curing the resin, depending on the type of resin included in the paint composition.

In one embodiment of the present invention, the paint composition may further include 10 wt% or less, 5 wt% or less, or 1 wt% of water based on the total weight of the composition. The lower limit is not particularly limited, but may be 0.01 wt% or more. By containing a small amount of water in the paint composition, it is possible to improve spreadability on the base material and increase curing time to secure sufficient working time.

In one embodiment of the present invention, the color difference (ΔE) may be 1 or more under low humidity conditions of 40% or less relative humidity (RH) and high humidity conditions of 50% or more relative humidity (RH). The color difference being 1 or more means that the colors measured under low-humidity conditions and high-humidity conditions are different. The paint composition may exhibit dichroism depending on humidity conditions. Dichroism means that different colors are observed depending on measurement conditions. Color can be expressed as CIE L*a*b*, and color difference can be defined using the distance (△E*ab) in L*a*b* space. Specifically, the color difference is , and within the range of 0<ΔE*ab<1, the observer cannot perceive the color difference [Reference: Machine Graphics and Vision 20(4):383-411]. Therefore, in this specification, dichroism can be defined as △E*ab>1.

One embodiment of the present invention includes preparing a dispersion matrix; and

Indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu), nickel (Ni), vanadium (V), and tungsten are added to the dispersion matrix. 1 or 2 selected from (W), tantalum (Ta), molybdenum (Mo), neodymium (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au) and silver (Ag) More than one type of material; its oxide; its chloride; its carbonate; carbon; and adding one or two or more pigments selected from the group consisting of carbon composites.

In one embodiment of the present invention, the method for producing the coating composition may further include dispersing the pigment in the dispersion matrix. The step of dispersing the pigment may use mechanical dispersion or chemical dispersion. The mechanical dispersion can use a dispersing device, and the chemical dispersion can be done by including the above-described dispersant in the paint composition.

One embodiment of the present invention includes preparing a base material;

Coating the paint composition on the base material; and

A method for manufacturing a painted product is provided, which includes the step of curing the paint composition.

In one embodiment of the present invention, the step of coating the paint composition on the base material may be performed by adding a coloring means containing the paint composition to the base material. Specifically, the paint composition can be fixed to the base material by pressing the brush impregnated with the paint composition onto the base material with artificial force.

In one embodiment of the present invention, curing the coating composition includes primary curing; And it may include the step of secondary curing. The secondary curing step is distinct from the primary curing step.

In one embodiment of the present invention, the primary curing step is performed to evaporate the solvent contained in the composition.

In one embodiment of the present invention, the primary curing step may be performed for 10 minutes to 10 hours, 20 minutes to 5 hours, or 30 minutes to 2 hours at room temperature and relative humidity (RH) of 60%. .

In one embodiment of the present invention, the secondary curing step is performed to fix the pigment on the base material.

In one embodiment of the present invention, the secondary curing step may be performed for 10 hours to 60 hours, 20 hours to 40 hours, or 24 hours to 36 hours under conditions of room temperature and relative humidity (RH) of 60%. .

In one embodiment of the present invention, the step of forming a protective layer on the cured paint composition may be further included. The step of forming the protective layer may include applying varnish or gel on the paint composition. Specifically, the gel may be a Golden heavy gel mat.

In one embodiment of the present invention, the base material may be one or more selected from the group consisting of metal, wood, plastic, ceramic, fiber, paper, styrene, and canvas.

Hereinafter, the present invention will be described in more detail through examples. However, the scope of the present invention is not limited to the embodiments described later.

Example 1

A paint composition was prepared by placing 70 wt% of transparent gesso and 30 wt% of iron powder as a dispersion matrix in a container and mixing them (Figure 1).

The paint composition prepared above was dipped into a brush and coated on the base material. The coated paint composition was dried at room temperature for 1 to 2 hours to volatilize the dispersion matrix, and then left in the shade for 24 hours to allow the iron pigment of the paint composition to be fixed to the base material (FIG. 2).

The manufactured painted product is shown in Figure 3, and it was confirmed that the black color appeared well.

Example 2

A painted product was manufactured in the same manner as in Example 1 except that the contents of transparent gesso and iron powder were changed to 40 wt% and 60 wt%, respectively, and it was confirmed that the black color appeared well (FIG. 4).

Example 3

A painted product was manufactured in the same manner as in Example 1 except that the contents of transparent gesso and iron powder were changed to 30 wt% and 70 wt%, respectively, and it was confirmed that the black color appeared well (FIG. 5).

Example 4

A painted product was manufactured in the same manner as in Example 1 except that the contents of transparent gesso and iron powder were changed to 50wt% and 50wt%, respectively, and finished with Golden Heavy Gel Mat, and it was confirmed that the black color appeared well ( Figure 6).

Example 5

50 wt% of transparent gesso and 40 wt% of iron powder were placed in a container as a dispersion matrix, and a paint composition was prepared in the same manner as in Example 1, except that 10 wt% of water was added to induce oxidation of the iron powder, and the base material was mixed in the same manner. coated on.

As a result of observation, it was confirmed that a slightly more brown color appeared compared to the painted product of Example 1 (FIG. 7).

Example 6

An iron paint composition was prepared in the same manner as in Example 1, except that 50 wt% of transparent gesso and 40 wt% of iron powder were placed in a container as a dispersion matrix, and 10 wt% of water was added to induce oxidation of the iron powder. In addition, 50 wt% of transparent gesso and 40 wt% of copper powder as a dispersion matrix were placed in a container, and a copper paint composition was prepared in the same manner as in Example 1, except that 10 wt% of water was added to induce oxidation of the iron powder.

A painted product was manufactured in the same manner as in Example 1, except that the copper paint composition was applied and dried on the top of the base material, and the iron paint composition was applied and dried on the bottom of the base material (FIG. 8).

Example 7

An iron-copper paint composition was prepared in the same manner as in Example 1, except that 60 wt% of transparent gesso, 10 wt% of iron powder, and 30 wt% of copper powder were placed in a container as a dispersion matrix. Additionally, an iron-aluminum paint composition was prepared in the same manner as in Example 1, except that 40 wt% of transparent gesso, 10 wt% of iron powder, and 30 wt% of aluminum powder were placed in a container as a dispersion matrix.

A painted product was manufactured in the same manner as in Example 1, except that the iron-copper paint composition was applied and dried on the top of the base material, and the iron-aluminum paint composition was applied and dried on the bottom of the base material (FIG. 9).

Example 8

A copper paint composition was prepared in the same manner as in Example 1, except that 60 wt% of transparent gesso and 40 wt% of copper powder were placed in a container as a dispersion matrix. Additionally, an iron-copper paint composition was prepared in the same manner as in Example 1, except that 60 wt% of transparent gesso, 30 wt% of iron powder, and 10 wt% of copper powder were placed in a container as a dispersion matrix.

A painted product was manufactured in the same manner as in Example 1, except that the copper paint composition was applied and dried on the base material to form a red part, and the iron-copper paint composition was applied and dried to form a brown part (Figure 10 ).

Example 9

An iron paint composition was prepared in the same manner as in Example 1, except that 60 wt% of transparent gesso and 40 wt% of iron powder were placed in a container as a dispersion matrix. Additionally, an aluminum paint composition was prepared in the same manner as in Example 1, except that 60 wt% of transparent gesso and 40 wt% of aluminum powder were placed in a container as a dispersion matrix.

A painted product was manufactured in the same manner as in Example 1, except that the iron paint composition was applied and dried on the base material to form a black part, and the aluminum paint composition was applied and dried to form a gray part (FIG. 11).

Example 10

A copper-aluminum-iron paint composition was prepared in the same manner as in Example 1, except that 60 wt% of transparent gesso, 20 wt% of copper powder, 18 wt% of aluminum powder, and 2 wt% of iron powder were placed in a container as a dispersion matrix.

A painted product was manufactured in the same manner as in Example 1, except that the copper-aluminum-iron paint composition was applied and dried on the base material (FIG. 12).

Example 11

A copper-aluminum-iron paint composition was prepared in the same manner as in Example 1, except that 60 wt% of transparent gesso, 30 wt% of copper powder, 8 wt% of aluminum powder, and 2 wt% of iron powder were placed in a container as a dispersion matrix.

A painted product was manufactured in the same manner as in Example 1, except that the copper-aluminum-iron paint composition was applied and dried on the base material (FIG. 13).

Example 12

A blue paint composition was prepared in the same manner as in Example 1, except that 70 wt% of transparent gesso and 30 wt% of cobalt chloride were mixed as a dispersion matrix. A pink color paint composition was prepared in the same manner as above except that cobalt carbonate was used instead of cobalt chloride. A black-blue color paint composition was prepared in the same manner as above except that cobalt oxide was used instead of cobalt chloride. An emerald-colored paint composition was prepared in the same manner as above except that copper carbonate was used instead of cobalt chloride. A white color paint composition was prepared in the same manner as above except that aluminum oxide was used instead of cobalt chloride. A light green color paint composition was prepared in the same manner as above except that nickel oxide was used instead of cobalt chloride. Finally, a dark green color paint composition was prepared in the same manner as above except that chromium oxide was used instead of cobalt chloride.

A painted product was manufactured in the same manner as in Example 1, except that the paint composition was applied and dried on the base material according to the color of the design (FIG. 14).

Example 13

A cobalt carbonate paint composition was prepared in the same manner as in Example 1, except that 50 wt% of transparent gesso and 50 wt% of cobalt carbonate powder were placed in a container as a dispersion matrix.

The cobalt carbonate paint composition was applied and dried on the base material, and a painted product was manufactured in the same manner as in Example 1, except that it was finished with Golden Heavy Gel Mat (FIG. 15).

Example 14

A cobalt chloride paint composition was prepared in the same manner as in Example 1, except that 50 wt% of transparent gesso and 50 wt% of cobalt chloride powder were placed in a container as a dispersion matrix. In addition, paint compositions for expressing other colors were appropriately selected from the above examples.

A picture was drawn on the base material by combining the cobalt chloride paint composition and other paint compositions, and a painted product was manufactured in the same manner as in Example 1.

The painted product was left for about a day under high-humidity conditions and low-humidity conditions, respectively. Under high-humidity conditions, the area coated with the cobalt chloride paint composition appeared purple, whereas under low-humidity conditions, the area coated with the cobalt chloride paint composition had a purple color. It was confirmed that the light changed to blue (Figures 16 and 17).

Claims (16)

dispersion matrix; and
One material selected from aluminum (Al), copper (Cu), nickel (Ni), iron (Fe), chromium (Cr), and cobalt (Co); its oxide; its chloride; and one or two or more pigments selected from the group consisting of carbonates thereof,
The content of the pigment is 40 parts by weight or more and 90 parts by weight or less based on 100 parts by weight of the total composition,
wherein the dispersion matrix includes gesso,
The color difference (△E) in low humidity conditions of relative humidity (RH) of 40% or less and high humidity of relative humidity (RH) of 50% or more is 1 or more,
A coating composition wherein the pigment has a diameter of 0.05 ㎛ or more and 10 ㎛ or less. delete In claim 1,
A coating composition wherein the pigment is in powder form. In claim 1,
A paint composition wherein the pigment has a refractive index of 0 to 8 in the visible light region. In claim 1,
A paint composition wherein the pigment has an extinction coefficient of 0 to 8 in the visible light region. In claim 1,
The dispersion matrix is an aromatic hydrocarbon-based solvent; Ketone-based solvent; Ester-based solvent; The coating composition further includes one or more solvents selected from the group consisting of combinations thereof. In claim 1,
A coating composition further comprising at least one resin selected from the group consisting of epoxy resin, acrylic resin, alkyd resin, vinyl chloride resin, chlorinated olefin resin, melamine-formaldehyde resin, and vinyl acetate resin. In claim 1,
A coating composition further comprising one or more additives selected from the group consisting of a curing agent, a viscosity modifier, a surfactant, a dispersant, a plasticizer, an antibacterial agent, a bactericide, an antioxidant, and an antifoaming agent. In claim 1,
A paint composition further comprising 10 wt% or less of water based on the total weight of the composition. delete In claim 1,
The paint composition wherein the pigment is dispersed on the dispersion matrix. preparing a dispersion matrix; and
One type of material selected from aluminum (Al), copper (Cu), nickel (Ni), iron (Fe), chromium (Cr), and cobalt (Co) in the dispersion matrix; its oxide; its chloride; and adding one or two or more pigments selected from the group consisting of carbonates thereof.
A method for producing the coating composition according to any one of claims 1, 3 to 9, and 11. Preparing the base material;
Coating the paint composition according to any one of claims 1, 3 to 9, and 11 on the base material; and
A method of manufacturing a painted product comprising the step of curing the paint composition. In claim 13,
Curing the paint composition includes primary curing; and
A method of manufacturing a painted product comprising the step of secondary curing. In claim 13,
A method of manufacturing a painted product further comprising forming a protective layer on the cured paint composition. In claim 13,
A method of manufacturing a painted product, wherein the base material is one or more selected from the group consisting of metal, wood, plastic, ceramic, fiber, paper, styrene, and canvas.